diff --git a/boards/px4/fmu-v5x/nuttx-config/base_phy_DP83848C/defconfig b/boards/px4/fmu-v5x/nuttx-config/base_phy_DP83848C/defconfig
index fb700f815d..01a013e85e 100644
--- a/boards/px4/fmu-v5x/nuttx-config/base_phy_DP83848C/defconfig
+++ b/boards/px4/fmu-v5x/nuttx-config/base_phy_DP83848C/defconfig
@@ -149,7 +149,6 @@ CONFIG_PRIORITY_INHERITANCE=y
 CONFIG_PTHREAD_MUTEX_ROBUST=y
 CONFIG_PTHREAD_STACK_MIN=512
 CONFIG_RAMTRON_SETSPEED=y
-CONFIG_RAMTRON_WRITEWAIT=y
 CONFIG_RAM_SIZE=245760
 CONFIG_RAM_START=0x20010000
 CONFIG_RAW_BINARY=y